but apparently my Apple ID is too new or something and can only download later versions. Got into Disk Manager (sorry 'Utility') wiped the disk and tried to do a 'Reinstall Mac OS X' from an online thing. I thought I had a fairly good grip on what to do (only internet searches as I'm no Mac daddy for sure)! There are a few more things to try before I admit it beat me, but to save me time that I don't really have does anyone know how to get the Mac OS back onto a Macbook Pro (A1211 - 2006'ish). Click on Continue, select the destination drive, and install.After spending a couple of hours on this yesterday afternoon, (although I have to admit I'm not sure it's worth the effort - long story short, I need a Mac to do some testing for another issue, so I dug out an old Macbook that's been sat in the cupboard for a few years). Select the orange “Mac OS X” option and you will boot into the OS X Mountain Lion installer, from here installation is the same as normal. When finished, reboot the Mac and hold down the Option key to bring up the boot menu: Confirm that the USB drive will lose it’s data and enter the Admin password when askedĭisk Utility will now create a bootable OS X Mountain Lion installer drive out of USB drive using the disk image, this can take a little while depending on how fast the drive and Mac are but 20-30 minutes isn’t unusual.Drag the formatted partition to the “Destination” section, then click on “Restore”.Drag the previously mounted “Mac OS X Install ESD” image into the “Source” section.Now select the formatted USB drive from the left side and click on the “Restore” tab.Select the USB drive from the left menu and click on “Erase” tab, choose “Mac OS X Extended (Journaled)” as the format, then click on the “Erase” button in the corner.
Launch Disk utility and connect a USB drive to the Mac.Make the OS X Mountain Lion Install Drive Double-click on InstallESD.dmg to mount it on the desktop.Open the “Contents” directory and then open “SharedSupport”, looking for a file named “InstallESD.dmg”.Go to the /Applications/ directory and right-click on “Install Mac OS X Mountain Lion.app” selecting “Show Package Contents”.Download OS X 10.8 Mountain Lion from the App Store.Download OS X Mountain Lion and Extract the DMG File If you already have the Mac OS X Mountain Lion install DMG extracted, skip this first set of steps and jump directly to making the bootable drive below. We’ll walk through the process here, but don’t forget to check OS X 10.8 system requirements for the destination Mac before beginning. By creating a bootable install drive, you can perform clean OS X 10.8 installs, install it on separate partitions, and install OS X Mountain Lion on Macs that don’t have internet connections.
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